Method for changing status of WUS operation and device supporting the same

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

receiving system information for enabling a wake up signal (WUS) operation;

enabling the WUS operation based on the system information;

receiving a WUS to monitor a paging in a paging occasion, while the WUS operation is enabled;

receiving downlink control information (DCI) for paging in the paging occasion;

receiving, on a physical downlink shared channel (PDSCH) based on the DCI for paging, a paging message for initiating a radio resource control (RRC) connection establishment by the UE, wherein the paging message comprises control information for disabling the WUS operation and the RRC connection establishment is initiated upon the UE receiving the paging message;

disabling the WUS operation based on the control information; and

monitoring a paging in one or more paging occasions without receiving a WUS, while the WUS operation is disabled.

2. The method of claim 1 , wherein the control information is obtained without acquiring system information.

3. The method of claim 1 , wherein the control information is toggled information.

4. The method of claim 1 , wherein the system information for the WUS operation is transmitted, during an initial access procedure to a base station (BS).

5. The method of claim 1 , wherein the UE is in communication with at least one of a mobile device, a network, or autonomous vehicles other than the UE.

6. A method performed by a base station (BS) in a wireless communication system, the method comprising:

transmitting, to a user equipment (UE), system information for enabling a wake up signal (WUS) operation;

transmitting, to the UE, a WUS to monitor a paging in a paging occasion, while the WUS operation is enabled;

transmitting, to the UE, downlink control information (DCI) for paging in the paging occasion; and

transmitting, to the UE based on the DCI for paging, a paging message for initiating a radio resource control (RRC) connection establishment by the UE on a physical downlink shared channel (PDSCH), wherein the paging message on the PDSCH comprises control information for disabling the WUS operation and the RRC connection establishment is initiated upon the UE receiving the paging message,

wherein a paging is monitored in one or more paging occasions without a WUS, while the WUS operation is disabled.

7. The method of claim 6 , wherein the control information is obtained without acquiring system information.

8. The method of claim 6 , wherein the control information is toggled information.

9. The method of claim 6 , wherein the system information for the WUS operation is transmitted to the UE, during an initial access procedure to the BS.

10. A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:

a transceiver;

at least one processor operatively coupled to the transceiver; and

at least one computer memory operatively coupled to the at least one processor and storing instructions that, based on being executed by the at least one processor, control the UE to:

control the transceiver to receive system information for enabling a wake up signal (WUS) operation;

enable the WUS operation based on the system information;

control the transceiver to receive a WUS to monitor a paging in a paging occasion, while the WUS operation is enabled;

control the transceiver to receive downlink control information (DCI) for paging in the paging occasion;

control the transceiver to receive, on a physical downlink shared channel (PDSCH) based on the DCI for paging, a paging message for initiating a radio resource control (RRC) connection establishment by the UE, wherein the paging message on the PDSCH comprises control information for disabling the WUS operation and the RRC connection establishment is initiated upon the UE receiving the paging message;

disable the WUS operation based on the control information; and

monitor a paging in one or more paging occasions without receiving a WUS, while the WUS operation is disabled.